SOUTHERN UNITED KINGDOM
ENGLAND
ISLE OF WIGHT COUNTY
BRIGHTSTONE BAY
WESSEX FORMATION
WEALDEN GROUP
VALANGINIAN-HAUTERIVIAN STAGE
NEOCOMIAN SUBEPOCH- BARREMIAN STAGE
LOWER GALLIC SUBEPOCH
EARLY CRETACEOUS EPOCH
EARLY CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: CHELONOMORPHA KUHN, 1960
SUPERCOHORT: TESTUNINATA KLEIN, 1760 (sensu JOYCE et al, 2004)
CLADE NAME: MESOCHELYDIA JOYCE, 2017
CLADE NAME: PERICHELYDIA JOYCE, 2017
Family: HELOCHELYDRIDAE Nopcsa, 1928
Helochelydra nopcsai
_____________________________________________________________________________________
SOUTHERN ENGLAND
ISLE OF WIGHT COUNTY
ISLE OF WIGHT
SOUTHEAST COAST
YAVERLAND
BED 38
OCCURING C. 4 M BELOW THE TOP OF THE WESSEX FORMATION
WEALDEN GROUP
VALANGINIAN-HAUTERIVIAN STAGE
NEOCOMIAN SUBEPOCH- BARREMIAN STAGE
LOWER GALLIC SUBEPOCH
EARLY CRETACEOUS EPOCH
EARLY CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: MAMMALIA LINNAEUS, 1758
SUBCLASS: PROTOTHERIA GILL, 1872
INFRACLASS: HOLOTHERIA (WIBEL, ROUGIER, NOVACEK, MCKENNA & DASHZEVEG, 1995) MCKENNA & BELL, 1997
SUPERLEGION: SYMMETRODONTA (SIMPSON, 1925) McKENNA & BELL, 1997
LEGION: SYMMETRODONTA SIMPSON, 1925
ORDER: SPALACOTHERIIDA PROTHERO, 1981
Family: SPALACOTHERIIDAE Marsh, 1887
Subfamily: SPALACOLESTINAE Cifelli & Madsen, 1999
*Yaverlestes gassoni
____________________________________________________________________________________
SOUTHERN ENGLAND
ISLE OF WIGHT COUNTY
ISLE OF WIGHT
SOUTHWEST COAST OF THE ISLE OF WIGHT
BEACH LEVEL NEAR BARNES HIGH
BED L14
WESSEX FORMATION
WEALDEN GROUP
VALANGINIAN-HAUTERIVIAN STAGE
NEOCOMIAN SUBEPOCH- BARREMIAN STAGE
LOWER GALLIC SUBEPOCH
EARLY CRETACEOUS EPOCH
EARLY CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: MAMMALIA LINNAEUS, 1758
SUBCLASS: PROTOTHERIA GILL, 1872
INFRACLASS: HOLOTHERIA (WIBEL, ROUGIER, NOVACEK, MCKENNA & DASHZEVEG, 1995) MCKENNA & BELL, 1997
SUPERLEGION: SYMMETRODONTA (SIMPSON, 1925) McKENNA & BELL, 1997
LEGION: SYMMETRODONTA SIMPSON, 1925
ORDER: SPALACOTHERIIDA PROTHERO, 1981
Family: SPALACOTHERIIDAE Marsh, 1887
Subfamily: SPALACOLESTINAE Cifelli & Madsen, 1999
Yaverlestes gassoni
____________________________________________________________________________________
SOUTHERN ENGLAND
ISLE OF WIGHT COUNTY
ISLE OF WIGHT
SOUTH-WEST COAST OF ISLE OF WIGHT
BEACH LEVEL WEST OF GRANGE CHINE
BED L9
WESSEX FORMATION
WEALDEN GROUP
VALANGINIAN-HAUTERIVIAN STAGE
NEOCOMIAN SUBEPOCH- BARREMIAN STAGE
LOWER GALLIC SUBEPOCH
EARLY CRETACEOUS EPOCH
EARLY CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: MAMMALIA LINNAEUS, 1758
SUBCLASS: PROTOTHERIA GILL, 1872
INFRACLASS: HOLOTHERIA (WIBEL, ROUGIER, NOVACEK, MCKENNA & DASHZEVEG, 1995) MCKENNA & BELL, 1997
SUPERLEGION: SYMMETRODONTA (SIMPSON, 1925) McKENNA & BELL, 1997
LEGION: SYMMETRODONTA SIMPSON, 1925
ORDER: SPALACOTHERIIDA PROTHERO, 1981
Family: SPALACOTHERIIDAE Marsh, 1887
Subfamily: SPALACOLESTINAE Cifelli & Madsen, 1999
Yaverlestes gassoni
____________________________________________________________________________________
SOUTHERN ENGLAND
ISLE OF WIGHT COUNTY
ISLE OF WIGHT
SOUTH-WEST COAST OF THE ISLE OF WIGHT
EXPOSED HIGH ON THE CLIFF NEAR SUDMOOR POINT
BED L2
WESSEX FORMATION
WEALDEN GROUP
VALANGINIAN-HAUTERIVIAN STAGE
NEOCOMIAN SUBEPOCH- BARREMIAN STAGE
LOWER GALLIC SUBEPOCH
EARLY CRETACEOUS EPOCH
EARLY CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: MAMMALIA LINNAEUS, 1758
SUBCLASS: PROTOTHERIA GILL, 1872
INFRACLASS: HOLOTHERIA (WIBEL, ROUGIER, NOVACEK, MCKENNA & DASHZEVEG, 1995) MCKENNA & BELL, 1997
SUPERLEGION: SYMMETRODONTA (SIMPSON, 1925) McKENNA & BELL, 1997
LEGION: SYMMETRODONTA SIMPSON, 1925
ORDER: SPALACOTHERIIDA PROTHERO, 1981
Family: SPALACOTHERIIDAE Marsh, 1887
Subfamily: SPALACOLESTINAE Cifelli & Madsen, 1999
Yaverlestes gassoni
____________________________________________________________________________________
ENGLAND
ISLE OF WIGHT COUNTY
WESSEX FORMATION
WEALDEN GROUP
VALANGINIAN-HAUTERIVIAN STAGE
NEOCOMIAN SUBEPOCH- BARREMIAN STAGE
LOWER GALLIC SUBEPOCH
EARLY CRETACEOUS EPOCH
EARLY CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
____________________________________________________________________________________SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: DIAPSIDA OSBORN, 1904
SUPERLEGION: NEODIAPSIDA BENTON, 1985
LEGION: ARCHOSAUROMORPHA HUENE, 1946
SUBLEGION: DINOSAUROMORPHA BENTON & NORMAN IN BENTON, 1985
INFRALEGION: DINOSAURIFORMES NOVAS, 1992
SUPERCOHORT: DINOSAURIA OWEN, 1842
COHORT: ORNITHISCHIFORMES COOPER, 1985
SUPERORDER: SAUROPODOMORPHA HUENE, 1932
GRANDORDER: BRONTOSAURIA OLSHEVSKY, 1991 (emend)
MICRORDER: SAUROPODA MARSH, 1878
ORDER: EUSAUROPODA
SUBORDER: NEOSAUROPODA BONAPARTE, 1986
INFRAORDER: MACRONARIA WILSON & SERENO, 1998
PARVORDER: TITANOSAURIFORMES SALGADO ET AL, 1997
Superfamily: TITANOSAUROIDEA Lydekker, 1885 (sensu Upchurch, 1999)
Family: TITANOSAURIDAE Lydekker, 1885
Incertae sedis
non Titanosaurus, *T. lydekkeri
ENGLAND
ISLE OF WIGHT COUNTY
EAST OF BARNES CHINE
WESSEX FORMATION
WEALDEN GROUP
VALANGINIAN-HAUTERIVIAN STAGE
NEOCOMIAN SUBEPOCH- BARREMIAN STAGE
LOWER GALLIC SUBEPOCH
EARLY CRETACEOUS EPOCH
EARLY CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: DIAPSIDA OSBORN, 1904
SUPERLEGION: NEODIAPSIDA BENTON, 1985
LEGION: ARCHOSAUROMORPHA HUENE, 1946
SUBLEGION: DINOSAUROMORPHA BENTON & NORMAN IN BENTON, 1985
INFRALEGION: DINOSAURIFORMES NOVAS, 1992
SUPERCOHORT: DINOSAURIA OWEN, 1842
COHORT: ORNITHISCHIFORMES COOPER, 1985
MAGNORDER: ORNITHISCHIA SEELEY, 1888
SUPERORDER: NEORNITHISCHIA COOPER, 1985
GRANDORDER: ORNITHOPODA MARSH, 1871
SUPERORDER: EURYOPDA SERENO, 1986
GRANDORDER: ARMATOSAURIA ZHAO, 1983 (emend)
ORDER: ANKYLOSAURIA OSBORN, 1923
SUBORDER: SCELIDOSAURIA COOPER, 1985
INFRAORDER: ANKYLOSAURA OSBORN, 1923
Family: POLACANTHIDAE Weiland, 1911
Polacanthus foxii
= *Polacanthus becklesi
= Polacanthus foxi
_____________________________________________________________________________________
ENGLAND
ISLE OF WIGHT COUNTY
BROOK
WEALDEN
VALANGINIAN-BARREMIAN STAGE
LOWERMOST NEOCOMIAN SUBEPOCH
LOWERMOST EARLY CRETACEOUS EPOCH
EARLY CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: CHELONOMORPHA KUHN, 1960
SUPERCOHORT: TESTUNINATA KLEIN, 1760 (sensu JOYCE et al, 2004)
CLADE NAME: MESOCHELYDIA JOYCE, 2017
CLADE NAME: PERICHELYDIA JOYCE, 2017
Family: HELOCHELYDRIDAE Nopcsa, 1928
*Helochelydra nopcsai
_____________________________________________________________________________________
SOUTHERN UNITED KINGDOM
ENGLAND
ISLE OF WIGHT COUNTY
WESSEX FORMATION
WEALDEN GROUP
VALANGINIAN-HAUTERIVIAN STAGE
NEOCOMIAN SUBEPOCH- BARREMIAN STAGE
LOWER GALLIC SUBEPOCH
EARLY CRETACEOUS EPOCH
EARLY CRETACEOUS
TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: DIAPSIDA OSBORN, 1904
SUPERLEGION: NEODIAPSIDA BENTON, 1985
LEGION: ARCHOSAUROMORPHA HUENE, 1946
SUBLEGION: DINOSAUROMORPHA BENTON & NORMAN IN BENTON, 1985
INFRALEGION: DINOSAURIFORMES NOVAS, 1992
SUPERCOHORT: DINOSAURIA OWEN, 1842
COHORT: ORNITHISCHIFORMES COOPER, 1985
MAGNORDER: ORNITHISCHIA SEELEY, 1888
SUPERORDER: NEORNITHISCHIA COOPER, 1985
GRANDORDER: ORNITHOPODA MARSH, 1871
MICRORDER: EUORNITHOPODA SERENO, 1986
ORDER: IGUANODONTIA DOLLO, 1888
SUBORDER: ANKYLOPOLLEXIA SERENO, 1986
PARVORDER: HADROSAURIFORMES SERENO, 1997
Superfamily: IGUANODONTIDEA Cope, 1869 (sensu Sereno, 1986)
Family: IGUANODONTIDAE Cope, 1869
Mantellisaurus atherfieldensis
= Iguanodon? atherfieldensis
____________________________________________________________________________________
SOUTHERN UNITED KINGDOM
ENGLAND
ISLE OF WIGHT COUNTY
BROOK BAY
WESSEX FORMATION
WEALDEN GROUP
VALANGINIAN-HAUTERIVIAN STAGE
NEOCOMIAN SUBEPOCH- BARREMIAN STAGE
LOWER GALLIC SUBEPOCH
EARLY CRETACEOUS EPOCH
EARLY CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: DIAPSIDA OSBORN, 1904
SUPERLEGION: NEODIAPSIDA BENTON, 1985
LEGION: ARCHOSAUROMORPHA HUENE, 1946
SUBLEGION: DINOSAUROMORPHA BENTON & NORMAN IN BENTON, 1985
INFRALEGION: DINOSAURIFORMES NOVAS, 1992
SUPERCOHORT: DINOSAURIA OWEN, 1842
COHORT: ORNITHISCHIFORMES COOPER, 1985
MAGNORDER: ORNITHISCHIA SEELEY, 1888
SUPERORDER: NEORNITHISCHIA COOPER, 1985
GRANDORDER: ORNITHOPODA MARSH, 1871
MICRORDER: EUORNITHOPODA SERENO, 1986
ORDER: IGUANODONTIA DOLLO, 1888
SUBORDER: ANKYLOPOLLEXIA SERENO, 1986
PARVORDER: HADROSAURIFORMES SERENO, 1997
Superfamily: IGUANODONTIDEA Cope, 1869 (sensu Sereno, 1986)
Family: IGUANODONTIDAE Cope, 1869
Mantellisaurus atherfieldensis
= Iguanodon? atherfieldensis
____________________________________________________________________________________
SOUTHERN UNITED KINGDOM
ENGLAND
ISLE OF WIGHT COUNTY
SANDOWN BAY
WESSEX FORMATION
WEALDEN GROUP
VALANGINIAN-HAUTERIVIAN STAGE
NEOCOMIAN SUBEPOCH- BARREMIAN STAGE
LOWER GALLIC SUBEPOCH
EARLY CRETACEOUS EPOCH
EARLY CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: DIAPSIDA OSBORN, 1904
SUPERLEGION: NEODIAPSIDA BENTON, 1985
LEGION: ARCHOSAUROMORPHA HUENE, 1946
SUBLEGION: DINOSAUROMORPHA BENTON & NORMAN IN BENTON, 1985
INFRALEGION: DINOSAURIFORMES NOVAS, 1992
SUPERCOHORT: DINOSAURIA OWEN, 1842
COHORT: ORNITHISCHIFORMES COOPER, 1985
MAGNORDER: ORNITHISCHIA SEELEY, 1888
SUPERORDER: NEORNITHISCHIA COOPER, 1985
GRANDORDER: ORNITHOPODA MARSH, 1871
MICRORDER: EUORNITHOPODA SERENO, 1986
ORDER: IGUANODONTIA DOLLO, 1888
SUBORDER: ANKYLOPOLLEXIA SERENO, 1986
PARVORDER: HADROSAURIFORMES SERENO, 1997
Superfamily: IGUANODONTIDEA Cope, 1869 (sensu Sereno, 1986)
Family: IGUANODONTIDAE Cope, 1869
Mantellisaurus atherfieldensis
= Iguanodon? atherfieldensis
____________________________________________________________________________________
SOUTHERN UNITED KINGDOM
ENGLAND
ISLE OF WIGHT COUNTY
BRIGHSTONE BAY
NEAR GRANGE CHINE
WESSEX FORMATION
WEALDEN GROUP
VALANGINIAN-HAUTERIVIAN STAGE
NEOCOMIAN SUBEPOCH- BARREMIAN STAGE
LOWER GALLIC SUBEPOCH
EARLY CRETACEOUS EPOCH
EARLY CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: DIAPSIDA OSBORN, 1904
SUPERLEGION: NEODIAPSIDA BENTON, 1985
LEGION: ARCHOSAUROMORPHA HUENE, 1946
SUBLEGION: DINOSAUROMORPHA BENTON & NORMAN IN BENTON, 1985
INFRALEGION: DINOSAURIFORMES NOVAS, 1992
SUPERCOHORT: DINOSAURIA OWEN, 1842
COHORT: ORNITHISCHIFORMES COOPER, 1985
MAGNORDER: ORNITHISCHIA SEELEY, 1888
SUPERORDER: NEORNITHISCHIA COOPER, 1985
GRANDORDER: ORNITHOPODA MARSH, 1871
MICRORDER: EUORNITHOPODA SERENO, 1986
ORDER: IGUANODONTIA DOLLO, 1888
SUBORDER: ANKYLOPOLLEXIA SERENO, 1986
PARVORDER: HADROSAURIFORMES SERENO, 1997
Superfamily: IGUANODONTIDEA Cope, 1869 (sensu Sereno, 1986)
Family: IGUANODONTIDAE Cope, 1869
Mantellisaurus atherfieldensis
= Iguanodon? atherfieldensis
____________________________________________________________________________________
SOUTHERN UNITED KINGDOM
ENGLAND
ISLE OF WIGHT COUNTY
NEAR BRIXTON
WESSEX FORMATION
WEALDEN GROUP
VALANGINIAN-HAUTERIVIAN STAGE
NEOCOMIAN SUBEPOCH- BARREMIAN STAGE
LOWER GALLIC SUBEPOCH
EARLY CRETACEOUS EPOCH
EARLY CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: DIAPSIDA OSBORN, 1904
SUPERLEGION: NEODIAPSIDA BENTON, 1985
LEGION: ARCHOSAUROMORPHA HUENE, 1946
SUBLEGION: DINOSAUROMORPHA BENTON & NORMAN IN BENTON, 1985
INFRALEGION: DINOSAURIFORMES NOVAS, 1992
SUPERCOHORT: DINOSAURIA OWEN, 1842
COHORT: ORNITHISCHIFORMES COOPER, 1985
MAGNORDER: ORNITHISCHIA SEELEY, 1888
SUPERORDER: NEORNITHISCHIA COOPER, 1985
GRANDORDER: ORNITHOPODA MARSH, 1871
MICRORDER: EUORNITHOPODA SERENO, 1986
ORDER: IGUANODONTIA DOLLO, 1888
SUBORDER: ANKYLOPOLLEXIA SERENO, 1986
PARVORDER: HADROSAURIFORMES SERENO, 1997
Superfamily: IGUANODONTIDEA Cope, 1869 (sensu Sereno, 1986)
Family: IGUANODONTIDAE Cope, 1869
Mantellisaurus atherfieldensis
= Iguanodon? atherfieldensis
____________________________________________________________________________________
SOUTHERN UNITED KINGDOM
ENGLAND
ISLE OF WIGHT COUNTY
BRIXTON
300 YARDS EAST OF THE FLAGSTAFF AT BRIXTON CHINE
WESSEX FORMATION
WEALDEN GROUP
VALANGINIAN-HAUTERIVIAN STAGE
NEOCOMIAN SUBEPOCH- BARREMIAN STAGE
LOWER GALLIC SUBEPOCH
EARLY CRETACEOUS EPOCH
EARLY CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: DIAPSIDA OSBORN, 1904
SUPERLEGION: NEODIAPSIDA BENTON, 1985
LEGION: ARCHOSAUROMORPHA HUENE, 1946
SUBLEGION: DINOSAUROMORPHA BENTON & NORMAN IN BENTON, 1985
INFRALEGION: DINOSAURIFORMES NOVAS, 1992
SUPERCOHORT: DINOSAURIA OWEN, 1842
COHORT: ORNITHISCHIFORMES COOPER, 1985
MAGNORDER: ORNITHISCHIA SEELEY, 1888
SUPERORDER: NEORNITHISCHIA COOPER, 1985
GRANDORDER: ORNITHOPODA MARSH, 1871
MICRORDER: EUORNITHOPODA SERENO, 1986
ORDER: IGUANODONTIA DOLLO, 1888
SUBORDER: ANKYLOPOLLEXIA SERENO, 1986
PARVORDER: HADROSAURIFORMES SERENO, 1997
Superfamily: IGUANODONTIDEA Cope, 1869 (sensu Sereno, 1986)
Family: IGUANODONTIDAE Cope, 1869
Mantellisaurus atherfieldensis
= Iguanodon? atherfieldensis
= *Vectisaurus valdensis
____________________________________________________________________________________
SOUTHERN UNITED KINGDOM
ENGLAND
ISLE OF WIGHT COUNTY
BROOK
WESSEX FORMATION
WEALDEN GROUP
VALANGINIAN-HAUTERIVIAN STAGE
NEOCOMIAN SUBEPOCH- BARREMIAN STAGE
LOWER GALLIC SUBEPOCH
EARLY CRETACEOUS EPOCH
EARLY CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: DIAPSIDA OSBORN, 1904
SUPERLEGION: NEODIAPSIDA BENTON, 1985
LEGION: ARCHOSAUROMORPHA HUENE, 1946
SUBLEGION: DINOSAUROMORPHA BENTON & NORMAN IN BENTON, 1985
INFRALEGION: DINOSAURIFORMES NOVAS, 1992
SUPERCOHORT: DINOSAURIA OWEN, 1842
COHORT: ORNITHISCHIFORMES COOPER, 1985
MAGNORDER: ORNITHISCHIA SEELEY, 1888
SUPERORDER: NEORNITHISCHIA COOPER, 1985
GRANDORDER: ORNITHOPODA MARSH, 1871
MICRORDER: EUORNITHOPODA SERENO, 1986
ORDER: IGUANODONTIA DOLLO, 1888
SUBORDER: ANKYLOPOLLEXIA SERENO, 1986
PARVORDER: HADROSAURIFORMES SERENO, 1997
Superfamily: IGUANODONTIDEA Cope, 1869 (sensu Sereno, 1986)
Family: IGUANODONTIDAE Cope, 1869
Mantellisaurus atherfieldensis
= Iguanodon? atherfieldensis
= *Sphenospondylus gracilis
____________________________________________________________________________________